C++11 scope guard, based on https://skydrive.live.com/view.aspx?resid=F1B8FF18A2AEC5C5!1158&app=WordPdf&authkey=!APo6bfP5sJ8EmH4

main.cpp

#include <iostream>

#include "ScopeGuard.h"

using namespace std;

void with_exception()
{
    auto guard = make_guard([] { cout << "cleanup from exception" << endl; });
    throw 1;
}

int main()
{
    auto guard = make_guard([] { cout << "cleanup from normal exit" << endl; });

    try {
        with_exception();
    } catch (...) {
    }

    return 0;
}

ScopeGuard.h

#ifndef SCOPEGUARD_H__
#define SCOPEGUARD_H__

#include <utility>

template <class Function>
class ScopeGuard
{
public:
    ScopeGuard(Function f) :
        _guardFunction(std::move(f)),
        _active(true)
    { }

    ~ScopeGuard()
    {
        if (_active)
            _guardFunction();
    }

    ScopeGuard(ScopeGuard&& rhs) :
        _guardFunction(std::move(rhs._guardFunction)),
        _active(rhs._active)
    {
        rhs.dismiss();
    }

    void dismiss()
    {
        _active = false;
    }

private:
    Function _guardFunction;
    bool _active;

    ScopeGuard() = delete;
    ScopeGuard(const ScopeGuard&) = delete;
    ScopeGuard& operator=(const ScopeGuard&) = delete;
};

template <class Function>
ScopeGuard<Function> make_guard(Function f)
{ return ScopeGuard<Function>(std::move(f)); }

#endif /* SCOPEGUARD_H */